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https://reviews.apache.org/r/11718/
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Review request for pig.


Description
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Adds a new property pig.maxCombinedSplitNum. Pig won't combine more splits than 
the configured limit. By default, it is set to Long.MAX_VALUE.


This addresses bug PIG-3346.
    https://issues.apache.org/jira/browse/PIG-3346


Diffs
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  src/docs/src/documentation/content/xdocs/perf.xml 78bb3ed 
  src/org/apache/pig/PigConfiguration.java b94e0c8 
  
src/org/apache/pig/backend/hadoop/executionengine/mapReduceLayer/JobControlCompiler.java
 292c0f1 
  
src/org/apache/pig/backend/hadoop/executionengine/mapReduceLayer/MRCompiler.java
 d785aac 
  
src/org/apache/pig/backend/hadoop/executionengine/mapReduceLayer/PigInputFormat.java
 2266305 
  src/org/apache/pig/backend/hadoop/executionengine/util/MapRedUtil.java 
0502917 
  test/org/apache/pig/test/TestSplitCombine.java 541aae2 
  test/org/apache/pig/test/TestSplitIndex.java 4bfdeb4 

Diff: https://reviews.apache.org/r/11718/diff/


Testing
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All unit tests pass.

A new unit test case is added for the new property.


Thanks,

Cheolsoo Park

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